Add async/await to support async builder

src/Container.js

@@ -38,7 +38,7 @@ Container.prototype.bind = function (abstract, builder, shared) {
  * @param {String} abstract
  * @returns {Object}
  */
-Container.prototype.make = function (abstract) {
+Container.prototype.make = async function (abstract) {
   debug('Make "%s"', abstract);
   const name = this.getAlias(abstract);
 
@@ -55,7 +55,7 @@ Container.prototype.make = function (abstract) {
   const constructor = this.getConstructor(name);
 
   debug('Run constructor of "%s"', name);
-  const instance = constructor.call(null, this);
+  const instance = await constructor.call(null, this);
 
   if (this.isShared(name)) {
     debug('Register instance "%s"');

src/Container.spec.js

@@ -99,7 +99,7 @@ describe('Container Test', () => {
     expect(container.bindings.foo).toEqual({ builder, shared: true });
   });
 
-  it('Test make function', () => {
+  it('Test make function', async () => {
     const container = new Container();
     container.aliases.set('foo', 'bar');
     container.aliases.set('build', 'make');
@@ -118,13 +118,27 @@ describe('Container Test', () => {
       },
     };
 
-    expect(container.make('make')).toBe('make');
-    expect(container.make('build')).toBe('make');
-    expect(container.make('bar')).toBe('foo');
-    expect(container.make('foo')).toBe('foo');
+    expect(await container.make('make')).toBe('make');
+    expect(await container.make('build')).toBe('make');
+    expect(await container.make('bar')).toBe('foo');
+    expect(await container.make('foo')).toBe('foo');
 
-    const result = container.make('test');
+    const result = await container.make('test');
     expect(result).toBeInstanceOf(Date);
-    expect(container.make('test')).toEqual(result);
+    expect(await container.make('test')).toEqual(result);
+  });
+
+  it('Test async creater', async () => {
+    const container = new Container();
+    async function makeFoo() {
+      return Promise.resolve('foo');
+    }
+    container.bind('foo', async () => {
+      const foo = await makeFoo();
+      return foo;
+    });
+
+    const foo = await container.make('foo');
+    expect(foo).toBe('foo');
   });
 });

src/booter.js

@@ -1,5 +1,3 @@
-
-
 const debug = require('debug')('node-di:boot');
 
 function resolveConstructor(object) {